Specific Energy of Pumping Calculator (kWh/m³)
Energy per cubic metre pumped — the KPI water utilities benchmark on.
Theoretical floor is 0.00272 kWh/m³ per metre of lift. A 50 m system at 60% wire-to-water burns 0.227 kWh/m³ — benchmark yours against it.
Formula
Specific Energy of Pumping Calculator (kWh/m³) is a free kwh per m3 for pump engineers, plumbers and plant designers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Specific Energy of Pumping Calculator (kWh/m³)
Energy per cubic metre pumped — the KPI water utilities benchmark on. The calculation implements E = g·H / (3600·η) kWh/m³ (World Bank / IWA — energy benchmarking in water utilities). Theoretical floor is 0.00272 kWh/m³ per metre of lift. A 50 m system at 60% wire-to-water burns 0.227 kWh/m³ — benchmark yours against it.
How to use Specific Energy of Pumping Calculator (kWh/m³)
- 1Enter Total head in m.
- 2Enter Wire-to-water efficiency in %.
- 3Read Specific energy, Per million litres instantly — no submit button needed.
- 4Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Specific Energy of Pumping Calculator (kWh/m³)?
- ✓Implements the standard formula — E = g·H / (3600·η) kWh/m³
- ✓Reference cited on-page: World Bank / IWA — energy benchmarking in water utilities
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Specific Energy of Pumping Calculator (kWh/m³) use?+
It computes E = g·H / (3600·η) kWh/m³, per World Bank / IWA — energy benchmarking in water utilities. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Theoretical floor is 0.00272 kWh/m³ per metre of lift. A 50 m system at 60% wire-to-water burns 0.227 kWh/m³ — benchmark yours against it.
Can I use this for pump selection?+
Use it to establish the duty (flow, head, NPSH, power) and then pick a pump whose curve passes through that point near best efficiency. The tool gives you the engineering numbers a supplier will ask for.
Is the Specific Energy of Pumping Calculator (kWh/m³) free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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